Metastasis of an aggressive cancer is difficult to treat, especially when the cancer is already resistant to most therapies, as in castration-resistant prostate cancer.

Emotional stress and turmoil take a physical toll on our bodies as well. Stress and abuse have been linked to migraines, auto-immune syndromes, heart problems and now skin cancer.

Teen drinking and driving is a major public health concern.  The fear of consequences does seem to motivate teens to behave. However, over the last 10 years, teen drinking and driving rates has notably decreased.

Children with HIV can live longer lives than ever with the range of anti-retroviral drugs available. But the drugs only work if they take them regularly and on time.

For the most aggressive cancers, using aggressive treatments turn the fighting of the disease into an all or nothing event. Despite possible side effects.

Smoking 'quitlines' are a cost-effective, easy to access tool to help people quit smoking.  Researchers are proposing that quitlines can also help smokers with hazardous drinking habits as well.

A new vaccine approved by the FDA means children may have the opportunity to receive protection from meningitis earlier and without an extra shot.

Sometimes the quick march of molecular science leaves behind the clinical world, with rapid advances in laboratory work taking time to filter through journals and into use.

Drug resistance remains a significant problem in cancer treatment. The contrast of smashing success early on makes any treatment failure later on even more baffling.

Post traumatic stress disorder (PTSD) is known to cause emotional numbing, sleep problems and hyperarousal. Now it is believed that PTSD may have additional symptoms as well.